Celestron - Off-Axis Guider

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$249.95

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SKU: CEL-93648
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Big improvement over other oag's owned by my friends. Larger adjustable prism and all metal construction a big plus. Instructions could be more detailed for those of us without experience using off-axis guiders. (Posted on 5/1/2015)
Review by:
SCT has a large back focus, so this OAG, for SCT, has a rich design.
Large prism. Double rotating device arrived back and forth. Smooth helicoid for guide CCD.M48 adapter for the camera. Very sturdy body.
I'm using the OAG with reducer. Can be adjusted out of the prism, so it has gained sufficient viewing. There is no need to look for guide star. The image of exposure 3 minutes to try to 20 sheets composite but never deviated 0.2 pixel. It is 1/20 of when using the guide telescope.
(Posted on 2/25/2015)

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